Well, maybe this is a question that I am gonna post that I probably do not want to know the answer too. Well, I am leaking antifreeze but not sure where. It is not dripping so I am guessing that it is burning which means head or head gasket. So, really dont have the $$$ to fix right now so I am gonna try this "Bars Leaks Head Gasket Repair-Block Steal (Cooling Stop Leak) Permanent Rapair. (Seals Cracked Heads, Repairs Blown Head Gaskets, Stops Block Leaks) How it is advertised anyway. Anyone ever tried the stuff. It was $10 I think. I put in some Prestone Radiator Cleaner the other day and ran it for time I was told to do so. I flushed the radiator probably 5-6 times today and almost got all the antifreeze out I think. I have to remove it all before I can add this stuff, if any is in there then it can clog. Wish me luck and hope that this will work. Poor man got poor ways.